Concerning South Korean citizens detained in North Korea, the official said humanitarian matters will also be up for discussion.
But Beijing is keen to avoid being sidelined in the wake of Kim's historic summit last month with South Korean President Moon Jae-in and ahead of his upcoming meeting with Trump in Singapore on June 12.
North Korea's Foreign Ministry announced Saturday that journalists from South Korea, the United States, China, Russia and Britain will be invited to observe the destruction of tunnels and the removal of observation and research facilities at the country's northeastern testing ground.
U.S. Secretary of State Mike Pompeo said on Sunday that Washington would agree to lift sanctions on North Korea if the country agrees to completely dismantle its nuclear weapons program, a move that would create economic prosperity that "will rival" that of South Korea.
The Chinese city of Dandong, which lies on the border with North Korea, is tightening regulation of its property market after speculators pushed up home prices as they bet on Pyongyang's pledge to rebuild its economy. "And the victims of an abduction, a plot to make the political use of them, should be sent immediately back" to their families, the Choson Sinbo newspaper said.
Malaysia's ousted leader Najib blacklisted from leaving country
Mahathir also said he had replaced the country's attorney general, who had cleared Najib of all wrongdoing in the 1MDB scandal. Mahathir previously said he would likely remain prime minister for two to three years, before transferring power to Anwar.
The meeting would be the latest in a series of actions taken by North Korea that have spurred hopes that the seven-decade conflict on the Korean Peninsula may be coming to an end.
However, on May 13, US national security advisor John Bolton made the USA stance clear when he said no benefits would flow to the North Korean regime unless a denuclearization process was "completely underway that's irreversible".
In return, the US would aid the North Korean economy by lifting sanctions and allowing private capital to flow into the country.
South Korea's Ministry of Unification confirmed that South and North Korea have agreed to hold.